In the presence of biofilms, stainless steels （SS） exhibits an increase in corrosion potential, called ennoblement. In the present study, the corrosion potential （Eco,） behavior of the duplex SS UNS S32760 was rec...In the presence of biofilms, stainless steels （SS） exhibits an increase in corrosion potential, called ennoblement. In the present study, the corrosion potential （Eco,） behavior of the duplex SS UNS S32760 was recorded simultaneously with the in situ marine biofilm formation in two areas at Arraial do Cabo, Southeastern Brazil. The biofilm at Forno Harbor （an anthropogenically disturbed area） was characterized by higher relative abundances of Bacteria at day 2, followed by diatoms （especially Navicula sp.） on day 10 and dinoflagellates on day 18, whereas no clear trend was recorded at Cabo Frio Island （an undisturbed area）. The ennoblement of Ecor values was site-dependent. In a complementary laboratory assay, biofilms were removed and the Eco values registered in sterile conditions for the subsequent 10 days and corroborated in situ results. Understanding biofilms and SS interactions has important implications for materials science and engineering decisions as well as helping to fill in imnortant gaps in this knowledge.展开更多
With the rapid development of the management science and technology, the management related course is becoming popular. In this research paper, we research on the enterprise strategic management course based on the pr...With the rapid development of the management science and technology, the management related course is becoming popular. In this research paper, we research on the enterprise strategic management course based on the problem oriented teaching methodology. We reviewed the latest strategic management recently developed various theories and academic point of view to from the theoretical level of modern enterprise strategy management pattern to generalize and summarize, thus to guide the strategic management of modern enterprises. Enterprise strategic management is to point to determine its mission according to the external environment and internal conditions set strategic goals of the enterprise. Through combing the development of the strategic management theory, grasp the context and the regularity of the evolution of enterprise strategic thinking and the development trend of enterprise strategic theory at home and abroad was discussed to promote the existing strategic management research provides some unique ideas and thoughts.展开更多
Chemical industry project management involves complex decision making situations that require discerning abilities and methods to make sound decisions. Chemical engineers as project managers are faced with decision en...Chemical industry project management involves complex decision making situations that require discerning abilities and methods to make sound decisions. Chemical engineers as project managers are faced with decision environments and problems in chemical industry projects that are complex. Multiple-criteria decision making （MCDM） approaches are major parts of decision theory and analysis. This paper presents all of MCDM approaches for use in chemical engineering management decisions. In this work, case study is Research and Development （R＆D） project selection in chemical industry. The ability to make sound decisions is very important to success of R＆D projects. It is hoped that this work will provide a ready reference on MCDM and this will encourage the application of the MCDM in chemical engineering management.展开更多
Using a conversation analysis approach, the present study investigates the teacher-led question-answer sequences of one successful seminar course （Short Stories and Western Culture） within the curriculum reform for ...Using a conversation analysis approach, the present study investigates the teacher-led question-answer sequences of one successful seminar course （Short Stories and Western Culture） within the curriculum reform for English majors in Beijing Foreign Studies University, aiming at uncovering an effective way of integrating disciplinary learning with language skills development. The result of the analysis shows that the teacher of the course, who perceives student participation as an indispensable ingredient of his class, often uses more divergent, opinion-seeking questions to initiate discussion and uses four types of expansion question on his turns to promote student participation, namely, probing questions （PQ）, clue-giving questions （CQ）, elaboration requests （ER）, and agreement checks （AC）. The study also generates an I-R-（E）-F-FC [Initiation-Response-（Evaluation）-FoUow up-Further Contribution] model, in which the teacher attempts to promote student participation and guide the construction of students＇ understanding.展开更多
文摘In the presence of biofilms, stainless steels （SS） exhibits an increase in corrosion potential, called ennoblement. In the present study, the corrosion potential （Eco,） behavior of the duplex SS UNS S32760 was recorded simultaneously with the in situ marine biofilm formation in two areas at Arraial do Cabo, Southeastern Brazil. The biofilm at Forno Harbor （an anthropogenically disturbed area） was characterized by higher relative abundances of Bacteria at day 2, followed by diatoms （especially Navicula sp.） on day 10 and dinoflagellates on day 18, whereas no clear trend was recorded at Cabo Frio Island （an undisturbed area）. The ennoblement of Ecor values was site-dependent. In a complementary laboratory assay, biofilms were removed and the Eco values registered in sterile conditions for the subsequent 10 days and corroborated in situ results. Understanding biofilms and SS interactions has important implications for materials science and engineering decisions as well as helping to fill in imnortant gaps in this knowledge.
文摘With the rapid development of the management science and technology, the management related course is becoming popular. In this research paper, we research on the enterprise strategic management course based on the problem oriented teaching methodology. We reviewed the latest strategic management recently developed various theories and academic point of view to from the theoretical level of modern enterprise strategy management pattern to generalize and summarize, thus to guide the strategic management of modern enterprises. Enterprise strategic management is to point to determine its mission according to the external environment and internal conditions set strategic goals of the enterprise. Through combing the development of the strategic management theory, grasp the context and the regularity of the evolution of enterprise strategic thinking and the development trend of enterprise strategic theory at home and abroad was discussed to promote the existing strategic management research provides some unique ideas and thoughts.
文摘Chemical industry project management involves complex decision making situations that require discerning abilities and methods to make sound decisions. Chemical engineers as project managers are faced with decision environments and problems in chemical industry projects that are complex. Multiple-criteria decision making （MCDM） approaches are major parts of decision theory and analysis. This paper presents all of MCDM approaches for use in chemical engineering management decisions. In this work, case study is Research and Development （R＆D） project selection in chemical industry. The ability to make sound decisions is very important to success of R＆D projects. It is hoped that this work will provide a ready reference on MCDM and this will encourage the application of the MCDM in chemical engineering management.
基金part of a curriculum reform project for English majorsBeijing Foreign Studies University and Beijing Municipal Educational Commission for their sponsorship(BFSU05012,BFSU0103B03,BMEC Higher Education[2006]27)
文摘Using a conversation analysis approach, the present study investigates the teacher-led question-answer sequences of one successful seminar course （Short Stories and Western Culture） within the curriculum reform for English majors in Beijing Foreign Studies University, aiming at uncovering an effective way of integrating disciplinary learning with language skills development. The result of the analysis shows that the teacher of the course, who perceives student participation as an indispensable ingredient of his class, often uses more divergent, opinion-seeking questions to initiate discussion and uses four types of expansion question on his turns to promote student participation, namely, probing questions （PQ）, clue-giving questions （CQ）, elaboration requests （ER）, and agreement checks （AC）. The study also generates an I-R-（E）-F-FC [Initiation-Response-（Evaluation）-FoUow up-Further Contribution] model, in which the teacher attempts to promote student participation and guide the construction of students＇ understanding.
